Auto-generate
production-ready molds
from your 3D models
Upload your STL/OBJ online or use our Blender add-on to generate mold boxes, splits, alignment keys, pour channels, and silicone volume estimates in minutes.
Mold Parameters
Estimates
Your workflow, your choice
Whether you live in Blender or prefer a browser, MoldMaker works where you do.
Blender Add-on
Stay in your modeling environment. Select any mesh and generate molds directly in the scene as named collections. When you need extra compute or sharing, send jobs to the cloud with one click.
- Works fully offline — no data sent
- N-Sidebar panel, no new UI to learn
- "Send to Cloud" for heavy jobs
- Direct export: STL/OBJ/3MF
Web App
Upload client files from anywhere — no software to install. Tweak parameters, queue the job, preview the result in 3D, and share a download link with your team or client.
- No software install needed
- Browser-based 3D preview
- Shareable result links
- Team seats on Studio plan
How it works
Three steps from raw model to print-ready mold system.
Import your model
Upload an STL or OBJ to the web app, or select any mesh object in Blender. MoldMaker reads units and geometry automatically.
Generate the mold system
Choose a mold type and parameters (or trust the smart defaults) and hit Generate. Our geometry engine creates adaptive mold boxes with parting planes, alignment keys, pour funnels, and vents.
Print, place, and pour
Download ready-to-slice parts, drop them into your slicer, print the mold halves, assemble, and pour your silicone or resin with confidence.
Built for serious makers
Every feature traces back to a real mold-making frustration.
Save silicone
Geometry-aware mold boxes hug your model with configurable margins and wall thickness — no more massive, wasteful blocks.
Easy demolding
Logical extraction directions and clean parting surfaces reduce damage and failed pulls. Keys auto-position on the parting plane.
Professional results
Alignment keys, smooth surfaces, and tuned channel layouts make repeatable production possible even on a desktop printer.
Know before you pour
Built-in silicone volume estimates help you plan batches, avoid under-mixing, and optimize material costs before a single drop is poured.
Built for 3D printing
All geometries are designed for FDM and resin printers, with control over wall thickness, minimum features, and support-friendly orientation.
Fully parametric
Every dimension is exposed: margins, wall thickness, key count and diameter, sprue angle, vent count. Presets for common workflows.
Who uses MoldMaker
From weekend hobbyists to busy prop studios — anyone who needs a repeatable mold workflow.
Miniature makers
Produce silicone molds for resin figurines, dungeon tiles, and collectibles without manual mold design.
Prop & cosplay studios
Turn client 3D scans into repeatable casting workflows. Consistent quality on every pull.
Product prototypers
Bridge the gap between 3D model and small batch urethane production — without a tooling shop.
Educators
Teach mold-making workflows in a classroom setting with instant generation and clear parameter exposure.
Start free, scale as you grow
3 free generations per month. No credit card required. Upgrade when you need more.
For hobbyists getting started
- 3 jobs / month
- 20 MB file limit
- STL/OBJ export
- Non-commercial
- Community support
For serious makers and freelancers
- 100 jobs / month
- 100 MB file limit
- STL / OBJ / 3MF export
- Commercial license
- Blender add-on included
- Priority queue
For small studios and teams
- 500 jobs / month
- Unlimited file size
- STL / OBJ / 3MF / STEP
- Team seats (5)
- API access
- Priority support + SLA
Need the Blender add-on without a subscription? Buy it standalone →
What early users say
Straight from our private beta community.
"Cut my mold prep time from 2 hours to about 15 minutes. The silicone estimate alone paid for itself on the first batch."
"I don't use Blender, so the web app was a game-changer. Uploaded my client scan, got a print-ready two-part mold back in under a minute."
"The parametric controls are exactly what I needed. I can dial in wall thickness per job type. Finally a tool built for people who actually pour."
Ready to make better molds, faster?
Start for free with 3 mold generations. No credit card required.
Join 500+ makers already in private beta